Which Came First Divisions
Cenozoic or Mesozoic
What is Mesozoic
The Appalachian Mountains or Himalayan Mountains
What is the Appalachian Mountains
Conifers or Flowering Plants
What is Conifers
Dinosaurs or Amphibians
What are Amphibians
Reptile or Dinosaurs
What are Reptiles
Paleozoic or Precambrian
What is Precambrian
The Atlantic Ocean formed or Pangaea formed
What is Pangaea formed
Ferns or Vascular plants
What are Vascular plants
Mammals or Reptiles
What are Reptiles
Humans or Primates
What are Primates
Paleozoic or Cenozoic
What is Paleozoic
The Rocky Mountains form or Pangaea breaks apart
What is Pangaea breaking apart
Forests or Rainforests
What are Forests
Insects or Reptiles
What are Insects
Invertebrates or Vertebrates
What are Invertebrates
Precambrian or Mesozoic
What is Precambrian
The Rocky Mountains or the Appalachian Mountains
What is the Appalachian Mountains
Conifers or Ferns
What are Ferns
Primates or Mammals
What are Mammals
Dragonflies or Birds
What are Dragonflies
Paleozoic or Mesozoic
What is Paleozoic
Pangaea formed or the Appalachian Mountains form
What is the Appalachian Mountains form
Grasslands or Conifers
What are Conifers
Bacteria or Invertebrates
What are Bacteria
Fish or Dinosaurs
What are Fish